我正在安卓上做一个项目。我仍然是安卓应用程序开发的初学者。我有一个开始按钮,单击该按钮后,将根据选中的单选按钮将我定向到新活动。我有 5 个单选按钮,选择一个并按下 go 按钮后,它应该进入新活动。问题是在我的手机上加载应用程序时,单选按钮正在工作,当我单击其中一个选项时它们会显示,但是当我单击Go时,没有任何反应。代码如下:
JAVA 代码(印度.java)
package com.example.android.travelindia;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.RadioButton;
public class India extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_india);
this.finish();
final RadioButton beach = (RadioButton) findViewById(R.id.radio1);
final RadioButton hillstation = (RadioButton) findViewById(R.id.radio2);
final RadioButton wildlife = (RadioButton) findViewById(R.id.radio3);
final RadioButton historical = (RadioButton) findViewById(R.id.radio4);
final RadioButton reli = (RadioButton) findViewById(R.id.radio5);
final Button go = (Button) findViewById(R.id.button1);
go.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (beach.isChecked()) {
Intent Intents= new Intent(India.this, sands.class); // <----- START "BEACHES" ACTIVITY
startActivity(Intents);
setContentView(R.layout.activity_sands);
}
else if (hillstation.isChecked()) {
Intent Intentm = new Intent(getApplicationContext(), mountains.class); // <----- START "HIll STATIONS" ACTIVITY
startActivityForResult(Intentm, 0);
}
else if (wildlife.isChecked()) {
Intent Intentw = new Intent(getApplicationContext(), forests.class); // <----- START "WILDLIFE" ACTIVITY
startActivityForResult(Intentw, 0);
}
else if (historical.isChecked()) {
Intent Intenth = new Intent(getApplicationContext(), history.class); // <----- START "HISTORICAL MONUMENTS" ACTIVITY
startActivityForResult(Intenth, 0);
}
else if (reli.isChecked()) {
Intent Intentr = new Intent(getApplicationContext(), religious.class); // <----- START "RELIGIOUS LOCATIONS" ACTIVITY
startActivityForResult(Intentr, 0);
}
}
});
}
}
你的问题出在你调用的onCreate(Bundle)中:
this.finish();
在您setContentView(R.layout.activity_india)
后立即告诉当前活动完成。
因此,请删除此行,一切都应按预期工作。